'Vigor' in the Bible

“You will come to the grave in full vigor,Like the stacking of grain in its season.

“His bones are full of his youthful vigor,But it lies down with him in the dust.

“Indeed, what good was the strength of their hands to me?Vigor had perished from them.

Let his flesh become fresher than in youth,Let him return to the days of his youthful vigor;